What Do You See? The options are similar to the ones on the E-mail tab:
Add
Settings
Set as Default (if you have more than one)
Remove
Open File Location

3. Try it: Find the Data File

The Account Settings are open. The Data File tab is selected.
Click on Open File Location.

What Do You See? The POP3 Data file is a *.pst file. You can confirm that it is the *real* database by looking at the file properties. The Date modified should be recent (perhaps today) and the File size may get rather large if you save pictures and attachments.

Do This: Copy the Data FileThis is the actual database…and this is the file you want to backup.

AutoArchive

You can program Microsoft Outlook to archive old items from the database. The archived items can be saved to a different data file, archive.pst.